Sy'n cael, sy'n cadw /
Halam, Ann.
Dafydd, Gwenllian.
University of Wales, Aberystwyth.Centre for Educational Studies.
Aberystwyth : Ganolfan Astudiaethau Addysg,
c2007.
First published as Finders Keepers in 2004 by Barrington Stoke Ltd., Edinburgh.
Welsh language